Chicago O'Hare properties

I need to crash at O'Hare for a night, currently I have the choice between the full-service Marriott (not the Suites) and the Courtyard. Any opinions on those properties? Which of the two should I choose? What is important to me is a 24hrs shuttle since I have an early flight leaving ORD at 6.12 am.

It is off-chain from what you asked about, but if you care about IHG points, consider the ORD intercontinental. They have shuttle service, and the property ranks as one of the top airport hotels in the country. Albeit a low bar, you'll be impressed if you try it.

The Courtyard can be a bit noisy. They have a pretty good staff, no other major issues.
The O'hare Marriott has seen much renovation recently and seems to be the better option. Many easy options for transport to ORD.

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